Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Milk Soup
Ingredients
Directions
Chop the cold boiled potatoes almost fine.
In a pot, combine the potatoes, butter, and milk.
Bring the mixture to a boil and let it cook for 10 minutes.
Season with pepper and coarse sea salt to taste.
For a richer soup, beat 2 eggs and stir them in briskly before serving.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Provide the body and starch that thicken the soup as it cooks.
- Milk
- Forms the liquid base of the soup and gives it a creamy, mild flavour.
- Butter
- Adds fat for a smoother mouthfeel and richer flavour.
- Eggs
- Stirred in at the end to enrich the soup and add body.
The step that matters
Bringing the mixture to a boil. Milk can scorch or stick to the bottom of the pot if heated too hard, so keep the heat controlled and stir while it cooks.
Swap the potato
How well each one fits the dish's main ingredients (milk, egg, butter, pepper):
- Capsicumfits about as well
- Potatothe original
- Asparagusfits about as well
- Chivefits less well
Fit is the average pairing score against milk, egg, butter, pepper. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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